APA

Handy R. L., Spangler M. G., Handy R. L. & Spangler M. G. (2007). Geotechnical engineering. New York [u.a.]: McGraw-Hill.

Chicago

Handy R L, Spangler Merlin Grant, Handy Richard Lincoln and Spangler Merlin Grant. 2007. Geotechnical engineering. New York [u.a.]: McGraw-Hill.

Harvard

Handy R. L., Spangler M. G., Handy R. L. and Spangler M. G. (2007). Geotechnical engineering. New York [u.a.]: McGraw-Hill.

MLA

Handy R L, Spangler Merlin Grant, Handy Richard Lincoln and Spangler Merlin Grant. Geotechnical engineering. New York [u.a.]: McGraw-Hill. 2007.